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I put a set of new TPS from tire rack in the rear and no problem learning them to the car. Got another set for the front and can not get the damm thing to learn, no beep of the horn or nothing.....maybe bad sender. I have the ZR1 wheel and the magnets are hard to get to the valve stem so maybe taking the wheel off and going from the inside to get closer to the valve stem.... any help would be great....Thanks Mark
When you're doing the LF and it won't work, keep walking around and trying the next wheel. If you can't get the front's to work but the rears work right away doing the exact same thing (holding the magnet the same way and the same distance) then it's likely the sensors. You really can't know that you did it the same for the rears if you did the rears weeks or months ago. Try them all at the same time.
A big brick magnet does help. I have a 1" x 2" x 3" ceramic magnet that I can hold an 1" or more off the sensor and it works no problem. I actually have a few and the things will leave marks if you get your fingers between 2 of them.